JXLIU Blog

「离开世界之前一切都是过程」

Slurm node unexpectedly rebooted

Slurm

After the Slurm computing node is manually restarted, the management node will set the status of the computing node to DOWN You can use the following command on the Slurm management node to restor...

Posted by JXLIU on January 6, 2023

Roche potential

Binary Stars

Roche potential \[\Phi_R(\vec{r})=-\frac{G M_1 M_{\odot}}{\left|\vec{r}-\vec{r}_1\right|}-\frac{G M_2 M_{\odot}}{\left|\vec{r}-\vec{r}_2\right|}-\frac{1}{2}(\vec{\omega} \times \vec{r})^2\] \[\ve...

Posted by JXLIU on December 13, 2022

Plot stream line using Paraview

txt file

Plot stream line using Paraview Load txt file 不勾选 “Have headers” Field Delimiter Characters 填入 " " Apply 添加 Filter:TableToPoints2 选择相应的 X,Y,Z 轴这里选择二维数据，勾选上 2D Points Apply 添加 F...

Posted by JXLIU on December 13, 2022

Upgrade nextcloud and install onlyoffice

docker

备份数据至少备份　/var/www/html/data 和　/var/www/html/config 文件夹，其余文件可不备份升级　nextcloud 修改　docker-compose.yml 中　nextcloud 版本，然后 docker-compose up，等待升级完成即可。注意不能跨版本升级，不能　downgrade。如果不小心跨版本升级，需要从官网下载升...

Posted by JXLIU on November 26, 2022

Install AUR software

manjaro/arch

Install AUR software Using yay Using git and pacman reference:archlinux wiki 1 2 3 4 5 cd ~/build git clone https://aur.archlinux.org/package_name.git cd package_name makepkg pacman -U package_n...

Posted by JXLIU on November 20, 2022

docker large log file

docker

remove useless log file 1 2 ls /var/lib/docker/containers/*/*-json.log -lh|awk '{print $9}' echo > *.log

Posted by JXLIU on November 20, 2022

Chinese input method in Gentoo OS

ibus

Compile ibus and dependencies 1 root #emerge --ask app-i18n/ibus ibus-libpinyin Add use flag to /etc/portage/package.use/ibus 1 2 dev-qt/qtgui ibus kde-plasma/plasma-desktop ibus 1 root #emerg...

Posted by JXLIU on November 5, 2022

rsync server

mirrors

rsyncd configuration /etc/rsyncd.conf 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 # /etc/rsyncd.conf # Minimal configuration file for rsync daemon # See rsync(1) and rsyncd.conf(5) ...

Posted by JXLIU on November 4, 2022

ssh tunnel

rsync

transter data between two servers which are not directly connected. 1 ssh -f -L 1233:<target IP>:[ssh port] username@<transit server IP> sleep 10; rsync -auvzP -e 'ssh -p 1233' jxliu@1...

Posted by JXLIU on November 4, 2022

Rubygems: Temporary failure in name resolution

Gentoo

Problem A “Temporary failure in name resolution” error appeared when I upgrade Gentoo linux system. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>> Downloading 'https://rubygems.org/gems/psyc...

Posted by JXLIU on September 8, 2022